The BOSS Poly Shifter represents a significant leap in polyphonic pitch-shifting technology, offering glitch-free, ultra-fast tracking across a wide range of up to ±7 semitones or ±3 octaves. Powered by advanced proprietary algorithms and 24-bit Adaptive Focus conversion, the XS-1 maintains the natural character and attack of your instrument while delivering pristine pitch-shifted tones.... Click on the title for more